What are the rules for changing nouns into adjectives?

1. Add -y after a noun to turn it into an adjective, especially some weather-related nouns.

For example: rain-rainy, cloud-cloudy, wind-windy, snow-snowy.

2. Add -less after a noun to form an adjective with a negative meaning

For example: care—careless, use—useless, hope—hopeless, hopeless. , home—homeless, e, some nouns ending in -ce, change -ce to -t to become an adjective.

For example: difference—different, silence—silent, confidence—confident

3. Add -ly after the noun to become an adjective

For example: friend— friendly, love—lovely, live——lively

4. Add -ous after a noun to become an adjective

For example: danger—dangerous

5. Noun Add -al after it to become an adjective

For example: music—musical; medicine—medical